نتایج جستجو برای: mechanical alloying hot extrusion process corrosion

تعداد نتایج: 1620378  

2011
M. A. Montealegre

Industrial applications require parts of components with specific surface properties such are good corrosion resistance, wear resistance and hardness. Alloys with those properties are usually very expensive and there is a great interest in reducing the cost of components for fulfilling these requirements. In this sense, laser surface processing has been used as a cost-effective technique to imp...

H Zia R Chokshi

Hot-melt extrusion is one of the most widely applied processing technologies in the plastic, rubber and food industry. Today this technology has found its place in the array of pharmaceutical manufacturing operations. Melt extrusion process are currently applied in the pharmaceutical field for the manufacture of a variety of dosage forms and formulations such as granules, pellets, tablets, supp...

2016
H. F. Li K. J. Qiu F. Y. Zhou L. Li Y. F. Zheng

In the case of medical implants, foreign materials are preferential sites for bacterial adhesion and microbial contamination, which can lead to the development of prosthetic infections. Commercially biomedical TiNi shape memory alloys are the most commonly used materials for permanent implants in contact with bone and dental, and the prevention of infections of TiNi biomedical shape memory allo...

2012
Yoshimitsu Okazaki

Zr, Nb, and Ta as alloying elements for Ti alloys are important for attaining superior corrosion resistance and biocompatibility in the long term. However, note that the addition of excess Nb and Ta to Ti alloys leads to higher manufacturing cost. To develop low-cost manufacturing processes, the effects of hot-forging and continuous-hot-rolling conditions on the microstructure, mechanical prope...

Journal: :international journal of advanced design and manufacturing technology 0
morteza ghadimi faculty of mechanical engineering, k.n. toosi university of technology ali shokuhfar faculty of mechanical engineering, k.n. toosi university of technology

in this work, nanostructured niti shape memory alloy with equal atomic percentage was produced through mechanical alloying. the result exhibited that after 60 h of mechanical alloying of high purity elemental powder mixtures of nickel and titanium by a planetary high-energy ball mill, the ti dissolved into ni lattice and niti (b2) phase with was obtained. the xrd investigations, sem observation...

The mechanical alloying process was used to synthesize the Ni50Al50−xMox nanocrystalline intermetallic compound using pure Ni and Al elemental powder. This process was carried out in the presence of various Mo contents as a micro-alloying element for various milling times. Structural changes of powder particles during mechanical alloying were studied by X-ray diffractometry (XRD) and scanning e...

Journal: :iranian journal of pharmaceutical research 0
r chokshi n noorani

hot-melt extrusion is one of the most widely applied processing technologies in the plastic, rubber and food industry. today this technology has found its place in the array of pharmaceutical manufacturing operations. melt extrusion process are currently applied in the pharmaceutical field for the manufacture of a variety of dosage forms and formulations such as granules, pellets, tablets, supp...

Journal: :Frontiers in Materials 2021

Mg-Bi binary alloys with concentrations of 1, 3, 6, and 9 wt% Bi ternary Mg-9Bi-2.5Zn alloy were prepared by casting hot extrusion. The results show that alloying refined as-cast grains Mg the refinement efficiency is in between Al Zr. It was also found a critical value for area fraction constituent 3 2 particles seems to appear, which influences dynamic recrystallization mechanism during This ...

2014
HYUN-GIL KIM IL-HYUN KIM YANG-IL JUNG DONG-JUN PARK JEONG-YONG PARK

Zirconium alloys have been used as a fuel cladding material for a long time because they have good corrosion resistance and irradiation stability in a reactor environment. However, it was recognized that the severe oxidation and creep ballooning behaviors of zirconium alloy cladding tubes at an accident condition of a nuclear reactor have to be considered to improve nuclear plant safety after t...

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